So I bought a CG-Lock for my Solo II for next year and for slush & slide this year if we ever get some snow.
I figured it would hold me into the seat better (as advertised) but was a little skeptical on how this would improve my laptimes as they say.
Well I understand now

Because you are held in so well, you feel as if you are one with the car, the seat is part of you which is bolted to the car, G-forces feel less prominate. I hoped onto an on-ramp and at the point where I would normally back off from the roll of the car and the "Feel" of uneasyness I didn't get that feeling, I just kept speeding up and felt I could go faster and faster.
I don't think I'll use this on the street, I might get into trouble, but for auto-x this thing is going to be a great confidense booster, assuming I don't push harder than I can drive.